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Numerical Ability
Area and Volume
A square park is surrounded by a path of uniform width 2 metres all round it. The area of the
path is 288 sq. metres. The perimeter of the park is
(1) 142 m
(2) 128 m
(3) 136 m
(4) 118 m
Read Solution (Total 6)
-
- option d is correct because
(x+4)^2-x^2=288
8x=288-16=272
x=34
perimeter=4x=4*34=136m - 11 years agoHelpfull: Yes(25) No(3)
- 3) 136 m
If x and y are length and width of park,
Area of pathway = 4x + 4y + 16
=> 4x + 4y + 16 = 288
=> 4x + 4y = 272
=> 2x + 2y = 136m - 11 years agoHelpfull: Yes(22) No(6)
- 4(X+X+4)= 288
x= 34
now S= 4X = 136 - 11 years agoHelpfull: Yes(4) No(0)
- its a square park,and all side of square are equal,how can we take side as x and y.can anyone explain plz
- 10 years agoHelpfull: Yes(4) No(0)
- let the side of a square is x
area of square will be x*x
now 2m is adding to both sides ,so area will become (x+4)(x+4)
it gives x*x + 4x + 4x + 16
now the area of path is x*x+8x+16=288
which gives 4x=136
perimter of square is 4*side
so 136 is d answer
- 10 years agoHelpfull: Yes(2) No(0)
- 4x+4y=288
2(x+y)=136 - 11 years agoHelpfull: Yes(1) No(4)
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